Results 21 to 30 of about 285,864 (400)
Folic acid and its derivatives (folates) play central roles in one-carbon metabolism, necessary for the synthesis of purines, pyrimidines, and some amino acids.
Ying Feng+2 more
doaj +1 more source
The interaction of aflatoxins with purines and purine nucleosides [PDF]
From measurements of thermal hyperchromicity and the behaviour of an aflatoxin-DNA mixture on a Sephadex column it was concluded that aflatoxin B(1) is capable of weak binding to single-stranded DNA. The interactions of the aflatoxins (B(1), G(1) and G(2)) with nucleosides result in difference spectra and suggest that the purine bases and the amino ...
K. R. Rees, Janet I. Clifford
openaire +3 more sources
The incidence of hyperuricemia is on the rise in China, primarily due to dietary habits. However, limited data exists regarding dietary purine intake in the country.
Shiwen Li+5 more
doaj +1 more source
Ferrocenoyl-adenines: substituent effects on regioselective acylation
A series of N6-substituted adenine–ferrocene conjugates was prepared and the reaction mechanism underlying the synthesis was explored. The SN2-like reaction between ferrocenoyl chloride and adenine anions is a regioselective process in which the product ...
Mateja Toma+5 more
doaj +1 more source
The Intersection of Purine and Mitochondrial Metabolism in Cancer
Nucleotides are essential to cell growth and survival, providing cells with building blocks for DNA and RNA, energy carriers, and cofactors. Mitochondria have a critical role in the production of intracellular ATP and participate in the generation of ...
Humberto de vitto+3 more
semanticscholar +1 more source
Metabolomics and mass spectrometry imaging reveal channeled de novo purine synthesis in cells
Signs of a metabolon in action Eukaryotic cells have a heterogeneous cytoplasm, with compartments large and small, membrane bound or not. Enzymes that catalyze the de novo synthesis of purine nucleotides, which are needed in rapidly dividing cells, are ...
V. Pareek+3 more
semanticscholar +1 more source
Coagulase-negative staphylococci and Staphylococcus aureus colonize similar niches in mammals and conceivably compete for space and nutrients. Here, we report that a coagulase-negative staphylococcus, Staphylococcus chromogenes ATCC43764, synthesizes and
Denny Chin+6 more
semanticscholar +1 more source
Intestinal epithelial cells are subject to attack by a diverse array of microbes, including intracellular as well as extracellular pathogens. While defense in epithelial cells can be triggered by pattern recognition receptor-mediated detection of microbe-
Eillen Tecle+5 more
semanticscholar +1 more source
Purine metabolism regulates DNA repair and therapy resistance in glioblastoma
Intratumoral genomic heterogeneity in glioblastoma (GBM) is a barrier to overcoming therapy resistance. Treatments that are effective independent of genotype are urgently needed.
Weihua Zhou+27 more
semanticscholar +1 more source
Purine nucleoside phosphorylase deficiency
People with purine nucleoside phosphorylase deficiency have low numbers of immune system cells called T cells, which normally recognize and attack foreign invaders to prevent infection.
C. Staufner
semanticscholar +1 more source